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Finding the Fourth Proportional to 15,280.91, 22,925 and 5,921.15

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Solution

The fourth proportional to 15,280.91, 22,925 and 5,921.15 is: 8,883.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,280.91 : 22,925 = 5,921.15 : x
  2. Step 2: Convert to fraction form
    15,280.91/22,925 = 5,921.15/x
  3. Step 3: Cross multiply
    15,280.91x = 22,925 × 5,921.15
  4. Step 4: Simplify right side
    15,280.91x = 135,742,363.75
  5. Step 5: Solve for x
    x = 135,742,363.75/15,280.91
  6. Step 6: Final answer
    x = 8,883.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.